Catweasel Mk1-3 not suitable for archiving - why?

[Al Kossow]

 >> The FDI format (google "Disk2FDI") is open and complete, and there's a
 >> few emulators supporting it (WinUAE, others that are also non-Amiga).
 >> Doesn't require a catweasel either.
 >
 > Wow, looks like it can handle both raw bitstreams, and decoded bitstreams too,
 > not to mention fully decoded sectors...

It doesn't appear they've ever has do deal with anything but soft-sectored formats
though.